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The air pollution as a by-product from the pyrolysis process of coconut shell waste into charcoal is a problem that must be considered. Therefore, the processing of pyrolysis by-product into liquid smoke has been developed in recent years. However, the conventional technology by directly condensing the smoke has many impurity compounds which cause a decrease in the yield of liquid smoke produced. Hence, in this study the cyclone separator was applied to increase the quality of physicochemical content in coconut shell-liquid smoke (CS-LS) grade C. The physical parameters analyzed were yield, pH, density and color. While the chemical parameters was analyzed by GC-MS. The result showed that CS-LS with cyclone separator was able to increase total yield into 3.33%, which the color, pH and density better than CS-LS conventional. The cyclone separator was able to increase the phenolic compounds (97%), alcoholic compounds (92%), cycloalkane compounds (91%) and also decreased the benzoic acid, carbonyl and ester up to 100% compared with conventional CS-LS. In addition, the application of cyclone separator technology was potential to be applied to the SMEs or industrial liquid smoke in order to improve the quantity and quality of liquid smoke in Indonesia